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photodermatitis

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Also known as photoallergic contact dermatitis, photoallergic eczema

Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic dermatitis in which the allergen is activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. The second and subsequent exposures produce photoallergic skin conditions which are often eczematous. It is distinct from sunburn.

Key facts

Medical condition.name
Sun poisoning
Medical condition.synonyms
Sun poisoning, photoallergy
Medical condition.image
Photodermatitis.jpg
Medical condition.caption
A case of photodermatitis as a result of lemons

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Research

15,882 papers

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Wikidata facts

Image
Photodermatitis.jpg
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Commons category
Photodermatitis
ICD-9-CM
692.72
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Article

6 sections
Contents
  • Signs and symptoms
  • Causes
  • Prevention
  • See also
  • References
  • External links

Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic dermatitis in which the allergen is activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. The second and subsequent exposures produce photoallergic skin conditions which are often eczematous. It is distinct from sunburn.

Some variants are caused by topical exposure, while others are caused by medications, and still others are caused by medical conditions which generate the allergen precursors in the body.

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